Creatine vs Melatonin for inflammation: which has better evidence?
A tie on evidence grade for inflammation (Creatine Grade — vs Melatonin Grade B). For inflammation, Melatonin has the stronger evidence grade.
Platform evidence comparison
These existing platform assessments are separate from the source-reported findings below. They do not represent a direct trial comparing these treatments.
| Creatine | Melatonin | |
|---|---|---|
| Grade | studied, no effect | grade B |
| Certainty | moderate | moderate |
| Effect | Meta-analysis: creatine supplementation did not significantly reduce inflammatory biomarkers (CRP, IL-6) in humans, either acutely or chronically. Certainty of evidence was rated moderate. The authors note some benefit was observed specifically under conditions of intense physical stress, but the general anti-inflammatory claim is not supported. | Meta-analysis of 31 clinical trials (1517 participants): melatonin significantly reduced inflammatory markers IL-1, IL-6, IL-8, and TNF versus placebo, but had no significant effect on C-reactive protein (CRP). After correcting for publication bias, effects on IL-1, IL-6, and IL-8 remained significant — a real anti-inflammatory signal on cytokines specifically, not on CRP. |
| Studied dose | varies across trials | varies across trials |
| Population | adults | adults |
| Safety | 0 modeled interaction(s) | 1 modeled interaction(s) |
Grade or certainty not assigned — evidence bucket does not yet warrant a graded claim.
Direct comparison evidence
There are no direct RCTs in our corpus comparing Creatine and Melatonin head-to-head for inflammation. What we present above is an indirect comparison: each side's own trials, contrasted. This is standard practice for supplement comparisons — dose, population, and outcome-instrument differences between the two evidence bases add uncertainty on top of each side's own grade.
Can you take both?
No modeled interaction between Creatine and Melatonin in our corpus. Absence of a recorded interaction is not proof of additive benefit — combined-effect trials are usually absent for supplement pairs, so treat "stack" claims skeptically.
Decision guidance
- If certainty matters most — choose whichever side carries the higher certainty rating at a similar grade.
- If you're on medications — check each side's interaction pages before deciding; safety differences dominate small evidence-grade gaps.
- If your population is under-studied — the smaller-effect side with better population evidence often wins over the higher-grade side studied in a different demographic.
- If cost matters — form and dose page differences (Creatine vs Melatonin) can invert the practical winner.
Grade history
No grade changes yet. Initial grade assigned; re-reviewed on every 6 months (Grade C+) — next review by . Methodology v1.
Re-review cadence: every 6 months (Grade C+) · next scheduled by · methodology v1.
Frequently asked
Which has stronger evidence: Creatine or Melatonin for inflammation?
Creatine carries Grade — at moderate certainty; Melatonin carries Grade B at moderate. The stronger evidence points to a tie, subject to the caveat that direct head-to-head trials are usually absent for supplement pairings.
Can I take Creatine and Melatonin together?
No modeled interaction between Creatine and Melatonin; combining is not documented to be problematic, but combined-effect trials are also absent, so treat additive benefit claims skeptically.
Have Creatine and Melatonin been compared head-to-head?
Direct RCTs comparing the two for inflammation are uncommon. This page contrasts each side's own trial evidence — that is an indirect comparison, which introduces confounds from population and dose differences. See the direct-comparison block above.
What decides between Creatine and Melatonin for me?
Read the decision guidance below — the split usually comes down to population fit, interaction risk with your other medications, and how much certainty you want behind the recommendation.
Related
Cite this page
Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.
Plain-text citation
Substrate. Creatine vs Melatonin for inflammation. https://evidencebased.info/compare/creatine-vs-melatonin-for-inflammation. Updated 2026-07-14.
BibTeX
@misc{substrate_toninforinflammation,
author = {Substrate editorial},
title = {Creatine vs Melatonin for inflammation},
year = {2026},
url = {https://evidencebased.info/compare/creatine-vs-melatonin-for-inflammation},
note = {evidencebased.info}
}